Rocks and Minerals

A naturally occurring solid mixture of more than one mineral.

• Mohs

• rock

• element

• mineral

Tags

NGSS.MS-ESS2-1

A mineral's ability to split easily along flat surfaces is its

• hardness

• cleavage

• luster

• streak

A measure of how easily a mineral can be scratched is its

• streak

• cleavage

• hardness

• luster

The way a mineral's surface reflects light is its

• streak

• cleavage

• luster

• hardness

The color of a mineral in powdered form is its

• streak

• cleavage

• luster

• hardness

A rock that forms within the earth itself is

• an intrusive rock

• an extrusive rock

• a metamorphic rock

• a sedimentary rock

An inorganic solid that has a crystal structure and a definite chemical composition is

• a rock

• a mineral

• an element

• a streak

Tags

NGSS.MS-PS1-1

Rocks that cool too quickly to form large crystals are called

• intrusive rocks

• metamorphic rocks

• extrusive rocks

• sedimentary rocks

Formed when molten magma from within the Earth cools and hardens.

• igneous rock

• sedimentary rock

• metamorphic rock

• pumice

Which type of rock is formed from both heat and pressure?

• extrusive igneous rocks

• intrusive igneous rocks

• metamorphic rocks

• sedimentary rocks